72148143 has 8 divisors (see below), whose sum is σ = 99514800. Its totient is φ = 46440128.

The previous prime is 72148123. The next prime is 72148169. The reversal of 72148143 is 34184127.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72148143 - 2¹² = 72144047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72148143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72148103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 414558 + ... + 414731.

It is an arithmetic number, because the mean of its divisors is an integer number (12439350).

Almost surely, 2^72148143 is an apocalyptic number.

72148143 is a deficient number, since it is larger than the sum of its proper divisors (27366657).

72148143 is a wasteful number, since it uses less digits than its factorization.

72148143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829321.

The product of its digits is 5376, while the sum is 30.

The square root of 72148143 is about 8494.0062985614. The cubic root of 72148143 is about 416.3018930875.

The spelling of 72148143 in words is "seventy-two million, one hundred forty-eight thousand, one hundred forty-three".